Honda Element. Manual — part 806

Fig. 18: Measuring Voltage Between ECM/PCM Connector Terminal B11 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Repair open in the wire between the ECM/PCM (B11) and the rocker arm oil pressure switch, then
go to step 12.

NO -Go to step 19.

12. Turn the ignition switch OFF.

13. Reconnect the rocker arm oil pressure switch 2P connector.

14. Turn the ignition switch ON (II).

15. Reset the ECM/PCM with the HDS.

16. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).

17. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2647 indicated?

YES -Check for poor connections or loose terminals at the rocker arm oil pressure switch and the
ECM/PCM, then go to step 1.

NO -Go to step 18.

18. Monitor the OBD STATUS for DTC P2647 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES -Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 17, go
to the indicated DTCs troubleshooting.

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the rocker arm oil
pressure switch and the ECM/PCM, then go to step 1. If the screen indicates NOT COMPLETED, keep
idling until a result comes on.

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE VTEC/VTC - Element

19. Turn the ignition switch OFF.

20. Reconnect all connectors.

21. Update the ECM/PCM if it does not have the latest software (see UPDATING THE ECM/PCM ), or

substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).

22. Start the engine, and let it idle.

23. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2647 indicated?

YES -Check for poor connections or loose terminals at the rocker arm oil pressure switch and the
ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see SUBSTITUTING
THE ECM/PCM ), then go to step 22. If the ECM/PCM was substituted, go to step 1.

NO -Go to step 24.

24. Monitor the OBD STATUS for DTC P2647 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES -If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see ECM/PCM REPLACEMENT ). If any other Temporary DTCs or
DTCs were indicated in step 23, go to the indicated DTCs troubleshooting.

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the rocker arm oil
pressure switch and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM
(see SUBSTITUTING THE ECM/PCM ), then go to step 22. If the ECM/PCM was substituted, go to
step 1. If the screen indicates NOT COMPLETED, keep idling until a result comes on.

DTC P2648: ROCKER ARM OIL CONTROL SOLENOID CIRCUIT LOW VOLTAGE

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Do the VTEC TEST in the INSPECTION MENU with the HDS.

Is the result OK?

YES -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
the rocker arm oil control solenoid and the ECM/PCM.

NO -Go to step 4.

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot, and
review the general troubleshooting information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE VTEC/VTC - Element

4. Turn the ignition switch OFF.

5. Disconnect the rocker arm oil control solenoid 2P connector.

6. At the solenoid side, measure resistance between rocker arm oil control solenoid 2P connector terminals

No. 1 and No. 2.

Fig. 19: Measuring Resistance Between Rocker Arm Oil Control Solenoid 2P Connector Terminals
No. 1 And 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 14-30 ohms, at room temperature?

YES -Go to step 7.

NO -Go to step 10.

7. Jump the SCS line with the HDS.

8. Disconnect ECM/PCM connector B (24P).

9. Check for continuity between ECM/PCM connector terminal B6 and body ground.

Fig. 20: Checking Continuity Between ECM/PCM Connector Terminal B6 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short in the wire between the ECM/PCM (B6) and the rocker arm oil control solenoid, then

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE VTEC/VTC - Element

go to step 11.

NO -Go to step 18.

10. Replace the rocker arm oil control valve (see ROCKER ARM OIL CONTROL VALVE

REMOVAL/INSTALLATION ).

11. Reconnect all connectors.

12. Turn the ignition switch ON (II).

13. Reset the ECM/PCM with the HDS.

14. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).

15. Do the VTEC TEST in the INSPECTION MENU with the HDS.

16. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2648 indicated?

YES -Check for poor connections or loose terminals at the rocker arm oil control solenoid and the
ECM/PCM, then go to step 1.

NO -Go to step 17.

17. Monitor the OBD STATUS for DTC P2648 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES -Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 16, go
to the indicated DTCs troubleshooting.

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the rocker arm oil
control solenoid and the ECM/PCM, then go to step 1. If the screen indicates NOT COMPLETED, go to
step 15.

18. Reconnect all connectors.

19. Update the ECM/PCM if it does not have the latest software (see UPDATING THE ECM/PCM ), or

substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).

20. Do the VTEC TEST in the INSPECTION MENU with the HDS.

21. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2648 indicated?

YES -Check for poor connections or loose terminals at the rocker arm oil control solenoid and the
ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see SUBSTITUTING
THE ECM/PCM ), then go to step 20. If the ECM/PCM was substituted, go to step 1

NO -Go to step 22.

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE VTEC/VTC - Element